When it comes to American constitutional law, by the late 19th century there was widespread agreement on two principles: that when interpreting the Fourteenth Amendment, the Supreme Court’s role was to protect those natural rights that had been crucial to the development of Anglo-American liberty; and that the United States had an unwritten Constitution based on traditional principles, much like Great Britain’s, that informed constitutional analysis.[3]

For the most part, the Supreme Court justices of the pre-New Deal period did not engage in a jurisprudence of originalism that would be recognizable to modern advocates of originalism. Rather than focusing on the original public meaning of discrete portions of the text, they instead interpreted the Constitution in light of the classical liberal values they believed were embedded in America’s written and unwritten constitutions. They sought to protect those liberties that underpinned the development of Anglo-American liberty. Their Progressive critics recognized this as a form of originalism, and accused them of allowing the dead hand of the past to rule the present. The critics instead advocated a “living Constitution” that would privilege social science and the perceived needs of modernity over the protection of traditional American liberties.[4]

The old Court permitted the government to impinge on recognized liberties when the government was acting within the contours of the so-called police power. Importantly, that power included not simply the protection of public health and safety, but also the protection of public morals, as defined by Anglo-American tradition. For example, despite the Court’s endorsement of liberty of contract, it had no difficulty unanimously upholding a law that restricted work on Sundays.[5]

The Supreme Court’s concern for protecting natural rights as understood in the context of Anglo-American history did not survive the New Deal and the triumph of legal progressivism. That triumph was so complete that for a long time the only significant debate in American constitutionalism was in effect between old Progressives who wanted to severely limit judicial review, and new Progressives who agreed that judicial review should generally be limited, but who sought to carve out certain preferred freedoms for special judicial protection. These freedoms were not defined by reference to tradition or history, but by the need to ensure that the modern special-interest state had democratic legitimacy. As the American state-building project continued, it was considered crucial to ensure that freedom of speech allowed for public debate and input, that criminal suspects received federal procedural protections, and that minorities such as African Americans did not become a permanent underclass, with their status imposed by government.